A、Serial0/1 为关闭状态
B、路由器未连接电缆
C、远程路由器正在使用 serial 0/0 接口
D、尚未设置时钟频率
更多“ Router# show interfaces serial 0/1 命令的输出显示了如下内容：  <br /> Serial0/1 is down， line protocol is down.  <br /> 线路协议为 down（关闭）的原因最可能是什么（）”相关的问题
A、router# show wlccp ap B、router# show wlccp wds ap C、router# show wlccp cckm D、router# show wlccp wds cckm
A、A.router# show wlccp ap B、B.router# show wlccp wds ap C、C.router# show wlccp cckm D、D.router# show wlccp wds cckm
A、show inventory B、show flash：filesys C、dir flash：include chassis D、show diag E、show controllers
A、Router（config-router）#show route ip B、Router（config）#show ip rip C、Router#show ip rip route D、Router#show ip route
A、show crypto map ipsec sa B、show crypto map C、show crypto engine connections active D、show ipsec crypto map E、show crypto map sa F、show ipsec crypto map sa
A、A. Router# show IOS B、B. Router# show version C、C. Router# show image D、D. Router# show protocols E、E. Router# show flash
A、Router# show ip eigrp routes * B、Router# show ip eigrp summary C、Router# show ip eigrp topology D、Router# show ip eigrp adjacencies E、Router# show ip eigrp neighbors detail
A、show ip protocol B、show ip route C、show ip ospf interface D、show ip ospf E、show ip interface F、None of the other alternatives apply
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